Not all companies lay down written guidelines and rules.

不是所有的公司都制定书面的准则和条例。

《柯林斯英汉双解大词典》

Entries which are illegible or otherwise not in accordance with the rules will be disqualified.

难以辨认的或不符合这些规定的参赛作品将被取消资格。

《柯林斯英汉双解大词典》

The rules are not going to change overnight.

这些规则是不会突然改变的。

《柯林斯英汉双解大词典》

Her teachers said the little girl knew all the rules but could not seem to follow them.

VOA: special.2009.07.31

And bear in mind the rules we're talking about here are not rules you explicity know.

记住,我们在这里所讨论的规则,你无法明确地意识到

耶鲁公开课 - 心理学导论课程节选

This kind of tension doesn't make things clear; the rules are not absolute, and not everybody fits into a pigeon hole.

这种紧张的冲突并不能让万事柳暗花明,因为事事无绝对,并不是每个人都能一个萝卜一个坑

耶鲁公开课 - 古希腊历史简介课程节选

And please remember: These are guidelines, not rules.

CNN: iReport boot camp: Taking better pictures

But what we have to do is ensure that there are not rules that are either in place that ignore the circumstances that surround the type of activities or provide an incentive to ignore those rules in order to pursue risky investments, obscene profits that ultimately lead to the taxpayer being on the hook for their solution.

WHITEHOUSE: Press Briefing

Ney says now he might write legislation to clarify the rules, not the rules about taking trips, but about disclosing them.

NPR: Scrutiny Falls on Those Close to Lobbyist